I am 37, so I can still pretty much ride anything. But where I notice a difference from when I was 25 is the way I feel AFTER a day at the park. I find myself limp and weary. My whole body feels like a dish-rag. 12 years ago, it wouldn't have phased me. Oh well.
Looking good. Love the color. That back part of the park always looked kind of "industrial" to me and I think the color of the track will help to make it look a lot better!